Rule 8.3 - RIO TINTO PLC
FORM 8.3
DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
(Rule 8.3 of the City Code on Takeovers and Mergers)
1. KEY INFORMATION
Name of person dealing BARCLAYS PLC
(Note 1)
Company dealt in RIO TINTO
Class of relevant security ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)
Date of dealing 17 December 2007
2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE
(a) Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)
Long Short
Number (%) Number (%)
(1) Relevant 47,835,503 4.80% 2,378,243 0.24%
securities
(2) Derivatives 2,301,863 0.23% 303,729 0.03%
(other than
options)
(3) Options and 204,131 0.02% 1,303,531 0.13%
agreements to
purchase/sell
Total 50,341,497 5.05% 3,985,503 0.40%
(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)
Class of Long Short
relevant
security:
Number (%) Number (%)
(1) Relevant
securities
(2) Derivatives
(other than
options)
(3) Options and
agreements to
purchase/sell
Total
(c) Rights to subscribe (Note 3)
Class of relevant security: Details
3. DEALINGS (Note 4)
(a) Purchases and sales
Purchase/sale Number of Securities Price per unit
(GBP)
Purchase 17,860 50.1200
Purchase 84,323 50.5275
Purchase 36,051 50.1378
Purchase 190,369 50.1449
Purchase 2,268 50.1585
Purchase 206 50.6448
Purchase 540 50.3005
Purchase 2,343 50.0185
Purchase 292 50.6191
Purchase 5,550 50.4593
Purchase 33,587 51.7600
Purchase 176 50.6563
Purchase 3,067 50.6404
Purchase 1,022 50.5306
Purchase 67 50.1200
Purchase 5,936 50.2586
Purchase 2,411 50.0463
Purchase 67,458 50.5275
Purchase 82,651 50.2274
Purchase 259 50.1517
Purchase 16,608 50.1000
Purchase 176 50.6500
Purchase 200 51.1333
Purchase 16,865 50.5275
Purchase 841 50.3859
Purchase 82,651 50.2274
Purchase 113,478 50.0899
Purchase 1,567 50.2969
Purchase 21,024 50.1200
Purchase 21,812 50.1457
Purchase 21,905 50.4925
Purchase 1,054 50.2400
Purchase 107,928 50.0709
Purchase 2,411 50.0463
Purchase 176 50.6500
Purchase 21,024 50.1200
Purchase 50 50.2868
Purchase 3,067 50.6404
Sale 60 50.6008
Sale 2,268 50.1540
Sale 540 50.2959
Sale 40 50.5875
Sale 3,067 50.6404
Sale 2,343 50.0110
Sale 5,781 50.1200
Sale 80 50.2933
Sale 44 50.6200
Sale 176 50.6500
Sale 2,411 50.0463
Sale 1,567 50.2918
Sale 2,319 50.5632
Sale 5,936 50.2586
Sale 176 50.6500
Sale 85 50.2351
Sale 82,651 50.2274
Sale 259 50.1517
Sale 14 50.5875
Sale 56 49.9325
Sale 21,812 50.1457
Sale 5,550 50.4593
Sale 1,022 50.5306
Sale 841 50.3859
Sale 59 50.5851
Sale 107,928 50.0709
Sale 100 50.7550
Sale 36,051 50.1287
Sale 5,936 50.2586
Sale 1,022 50.5306
Sale 206 50.6372
Sale 190,369 50.1449
Sale 21,905 50.4925
Sale 100 50.5175
Sale 1,054 50.2400
Sale 259 50.1517
(b) Derivatives transactions (other than options)
Product name, Long/Short Number of Price per
(e.g. CFD) (Note 6) Securities unit (GBP)
CFD Short 2343 50.0185
CFD Short 2411 50.0463
CFD Short 36051 50.1377
CFD Short 21812 50.1457
CFD Short 540 50.3004
CFD Short 21905 50.4925
CFD Short 3067 50.6404
CFD Short 176 50.6563
CFD Long 259 50.1516
CFD Long 2268 50.1539
CFD Long 1054 50.24
CFD Long 1567 50.2918
CFD Long 841 50.3859
CFD Long 1022 50.5305
CFD Long 213 50.63
CFD Long 206 50.6371
(c) Options transactions in respect of existing securities
(i) Writing, selling, purchasing or varying
Product name, Writing, Number of Exercise Type, e.g. Expiry Option money
e.g. call selling, securities to price American, date paid/received
option purchasing, which the option European etc. per unit (GBP)
varying etc. relates (GBP)
(ii) Exercising
Product name, e.g. Number of Exercise price per
call option securities unit (Note 5)
(d) Other dealings (including new securities) (Note 4)
Nature of transaction Details Price per unit
(Note 8) (if applicable)
(Note 5)
4. OTHER INFORMATION
None
Agreements, arrangements or understandings relating to options or derivatives
Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced. If none, this should be stated.
Is a Supplemental Form 8 attached? (Note 9) YES
Date of disclosure 18 December 2007
Contact name Geoff Smith
Telephone number 020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)
Notes
The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk
SUPPLEMENTAL FORM 8
DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)
OPEN POSITIONS (Note 1)
Product name, Written or Number of securities Exercise price Type, e.g. Expiry date
e.g. call option purchased to which the option (Note 2) American,
or derivative relates European etc.
Option Purchased 250 3,300.0000 EURO 21/12/2007
Option Purchased -1,000 3,500.0000 EURO 21/12/2007
Option Purchased -500 4,400.0000 EURO 21/12/2007
Option Purchased -350 5,200.0000 EURO 21/12/2007
Option Purchased -306 4,200.0000 EURO 21/12/2007
Option Purchased -300 3,800.0000 EURO 20/06/2008
Option Purchased -300 6,000.0000 EURO 21/12/2007
Option Purchased -275 4,800.0000 EURO 21/12/2007
Option Purchased -250 2,500.0000 EURO 20/06/2008
Option Purchased -250 5,200.0000 EURO 20/03/2008
Option Purchased 50 5,400.0000 EURO 20/03/2008
Option Purchased 100 5,600.0000 EURO 18/01/2008
Option Purchased 125 4,400.0000 EURO 20/06/2008
Option Purchased -100,000 30.0000 AMER 20/06/2008
Option Purchased 250 3,000.0000 EURO 20/06/2008
Option Purchased -300,000 56.0000 AMER 15/02/2008
Option Purchased 250 3,800.0000 EURO 20/06/2008
Option Purchased 250 4,500.0000 EURO 21/12/2007
Option Purchased 250 6,000.0000 EURO 15/02/2008
Option Purchased 250 6,000.0000 EURO 15/02/2008
Option Purchased 275 5,000.0000 EURO 21/12/2007
Option Purchased 306 4,800.0000 EURO 21/12/2007
Option Purchased 350 4,600.0000 EURO 19/12/2008
Option Purchased 350 4,600.0000 EURO 19/12/2008
Option Purchased 450 3,500.0000 EURO 21/12/2007
Option Purchased 500 5,200.0000 EURO 21/12/2007
Option Purchased 200,000 60.0000 AMER 18/01/2008
Option Purchased -600,000 42.0000 AMER 21/12/2007
Option Purchased -300,000 52.0000 AMER 15/02/2008
Option Purchased 125 4,400.0000 EURO 20/06/2008
Notes
1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.
2. For all prices and other monetary amounts, the currency must be stated.
For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk